; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=arm64-- | FileCheck %s ; This test provides fmf coverage for DAG combining of selects ; select Cond0, (select Cond1, X, Y), Y -> select (and Cond0, Cond1), X, Y define float @select_select_fold_select_and(float %w, float %x, float %y, float %z) { ; CHECK-LABEL: select_select_fold_select_and: ; CHECK: // %bb.0: ; CHECK-NEXT: fminnm s5, s1, s2 ; CHECK-NEXT: fcmp s1, s2 ; CHECK-NEXT: fmaxnm s1, s0, s3 ; CHECK-NEXT: fmov s4, #0.50000000 ; CHECK-NEXT: fccmp s5, s0, #4, lt ; CHECK-NEXT: fcsel s2, s1, s0, gt ; CHECK-NEXT: fadd s1, s0, s4 ; CHECK-NEXT: fadd s4, s1, s2 ; CHECK-NEXT: fcmp s4, s1 ; CHECK-NEXT: b.le .LBB0_2 ; CHECK-NEXT: // %bb.1: // %if.then.i157.i.i ; CHECK-NEXT: fmov s0, #1.00000000 ; CHECK-NEXT: fadd s0, s2, s0 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB0_2: // %if.end.i159.i.i ; CHECK-NEXT: mov w8, #52429 ; CHECK-NEXT: mov w9, #13107 ; CHECK-NEXT: movk w8, #48844, lsl #16 ; CHECK-NEXT: movk w9, #48819, lsl #16 ; CHECK-NEXT: fcmp s1, #0.0 ; CHECK-NEXT: fmov s2, w8 ; CHECK-NEXT: fmov s4, w9 ; CHECK-NEXT: fadd s0, s0, s2 ; CHECK-NEXT: fadd s2, s3, s4 ; CHECK-NEXT: fcsel s0, s0, s2, gt ; CHECK-NEXT: ret %tmp21 = fcmp fast olt float %x, %y %tmp22 = select fast i1 %tmp21, float %x, float %y %tmp24 = fcmp fast ogt float %tmp22, %w %tmp78 = fcmp fast ogt float %w, %z %select0 = select fast i1 %tmp78, float %w, float %z %select1 = select fast i1 %tmp21, float %select0, float %w %select2 = select fast i1 %tmp24, float %select1, float %w %tmp82 = fadd fast float %w, 5.000000e-01 %tmp102 = fadd fast float %tmp82, %select2 %cmp.i155.i.i = fcmp fast ogt float %tmp102, %tmp82 br i1 %cmp.i155.i.i, label %if.then.i157.i.i, label %if.end.i159.i.i if.then.i157.i.i: ; preds = %0 %add.i156.i.i = fadd fast float %select2, 1.000000e+00 br label %exit if.end.i159.i.i: ; preds = %0 %sub.i158.i.i = fadd fast float %w, 0xBFD99999A0000000 %sub15.i.i.i = fadd fast float %z, 0xBFD6666660000000 %tmp191 = fcmp fast ogt float %tmp82, 0.000000e+00 %select3 = select fast i1 %tmp191, float %sub.i158.i.i, float %sub15.i.i.i br label %exit exit: ; preds = %if.end.i159.i.i, %if.then.i157.i.i %phi1 = phi float [ %add.i156.i.i, %if.then.i157.i.i ], [ %select3, %if.end.i159.i.i ] ret float %phi1 } ; select Cond0, X, (select Cond1, X, Y) -> select (or Cond0, Cond1), X, Y define float @select_select_fold_select_or(float %w, float %x, float %y, float %z) { ; CHECK-LABEL: select_select_fold_select_or: ; CHECK: // %bb.0: ; CHECK-NEXT: fminnm s5, s1, s2 ; CHECK-NEXT: fcmp s1, s2 ; CHECK-NEXT: fmaxnm s1, s0, s3 ; CHECK-NEXT: fmov s4, #0.50000000 ; CHECK-NEXT: fccmp s5, s0, #0, ge ; CHECK-NEXT: fcsel s2, s0, s1, gt ; CHECK-NEXT: fadd s1, s0, s4 ; CHECK-NEXT: fadd s4, s1, s2 ; CHECK-NEXT: fcmp s4, s1 ; CHECK-NEXT: b.le .LBB1_2 ; CHECK-NEXT: // %bb.1: // %if.then.i157.i.i ; CHECK-NEXT: fmov s0, #1.00000000 ; CHECK-NEXT: fadd s0, s2, s0 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB1_2: // %if.end.i159.i.i ; CHECK-NEXT: mov w8, #52429 ; CHECK-NEXT: mov w9, #13107 ; CHECK-NEXT: movk w8, #48844, lsl #16 ; CHECK-NEXT: movk w9, #48819, lsl #16 ; CHECK-NEXT: fcmp s1, #0.0 ; CHECK-NEXT: fmov s2, w8 ; CHECK-NEXT: fmov s4, w9 ; CHECK-NEXT: fadd s0, s0, s2 ; CHECK-NEXT: fadd s2, s3, s4 ; CHECK-NEXT: fcsel s0, s0, s2, gt ; CHECK-NEXT: ret %tmp21 = fcmp fast olt float %x, %y %tmp22 = select fast i1 %tmp21, float %x, float %y %tmp24 = fcmp fast ogt float %tmp22, %w %tmp78 = fcmp fast ogt float %w, %z %select0 = select fast i1 %tmp78, float %w, float %z %select1 = select fast i1 %tmp21, float %w, float %select0 %select2 = select fast i1 %tmp24, float %w, float %select1 %tmp82 = fadd fast float %w, 5.000000e-01 %tmp102 = fadd fast float %tmp82, %select2 %cmp.i155.i.i = fcmp fast ogt float %tmp102, %tmp82 br i1 %cmp.i155.i.i, label %if.then.i157.i.i, label %if.end.i159.i.i if.then.i157.i.i: ; preds = %0 %add.i156.i.i = fadd fast float %select2, 1.000000e+00 br label %exit if.end.i159.i.i: ; preds = %0 %sub.i158.i.i = fadd fast float %w, 0xBFD99999A0000000 %sub15.i.i.i = fadd fast float %z, 0xBFD6666660000000 %tmp191 = fcmp fast ogt float %tmp82, 0.000000e+00 %select3 = select fast i1 %tmp191, float %sub.i158.i.i, float %sub15.i.i.i br label %exit exit: ; preds = %if.end.i159.i.i, %if.then.i157.i.i %phi1 = phi float [ %add.i156.i.i, %if.then.i157.i.i ], [ %select3, %if.end.i159.i.i ] ret float %phi1 }